Description: The Journal of the American Statistical Association (JASA) has long been
considered the premier journal of statistical science. Science Citation
Index reported JASA was the most highly cited journal in the mathematical
sciences in 1991-2001, with 16,457 citations, more than 50% more than the
next most highly cited journals. Articles in JASA focus on statistical
applications, theory, and methods in economic, social, physical,
engineering, and health sciences and on new methods of statistical
education.

The "moving wall" represents the time period between the last issue
available in JSTOR and the most recently published issue of a journal.
Moving walls are generally represented in years. In rare instances, a
publisher has elected to have a "zero" moving wall, so their current
issues are available in JSTOR shortly after publication.
Note: In calculating the moving wall, the current year is not counted.
For example, if the current year is 2008 and a journal has a 5 year
moving wall, articles from the year 2002 are available.

Terms Related to the Moving Wall

Fixed walls: Journals with no new volumes being added to the archive.

Absorbed: Journals that are combined with another title.

Complete: Journals that are no longer published or that have been
combined with another title.

Abstract

Approximations were derived for the mean and variance of G2, the likelihood ratio statistic for testing goodness of fit in a k cell multinomial distribution. These approximate moments, accurate to O(N-3), may be used in fitting the distribution of G2. Extensive numerical studies of the exact and approximate distributions were performed in the special case of equiprobability. The asymptotic chi-squared distribution was found to fit poorly for k ≥ 4. Satisfactory results were obtained using a multiplicative correction to the chi-squared fit. More sophisticated procedures using the beta distribution produced increased accuracy, but at the cost of excessive computational labor.